担当者様
現在、FESS（v13.8.1）を導入しております。
SharePointのクロールを行いたいのですが、「fess-ds-sharepoint」プラグインが導入済みのFESSバージョンに対応していないようで、最新のFESS（v13.15.1）で動作を検証しております。
以下サイトの手順に従い、SharePointのクロール設定を追加したのですが、ジョブ実行はOKとなるのですが、検索対象がヒットしない状況です。
fess-clawler.logを見るとエラーが発生しておりました。
権限関連のエラーと見受けられるのですが、認証情報等見直してもうまくいかない状況となります。
バージョン情報：
elasticsearch: 7.15.2
fess: 13.15.1
fess-ds-sharepoint: 13.15.0
お手数をおかけしますが、解決方法をご教示いただけないでしょうか？
クロール設定
ジョブ実行時のfess-clawler.log
2021-12-09 09:36:22,430 [dS_7mH0BJU4wyiTI2sNA-1] WARN Error occured. Request failure. Cannot deserialize value of type `java.util.LinkedHashMap<java.lang.Object,java.lang.Object>` from Integer value (token `JsonToken.VALUE_NUMBER_INT`)
at [Source: (String)"403 FORBIDDEN"; line: 1, column: 1]
org.codelibs.fess.ds.sharepoint.client.exception.SharePointClientException: Request failure. Cannot deserialize value of type `java.util.LinkedHashMap<java.lang.Object,java.lang.Object>` from Integer value (token `JsonToken.VALUE_NUMBER_INT`)
at [Source: (String)"403 FORBIDDEN"; line: 1, column: 1]
at org.codelibs.fess.ds.sharepoint.client.api.SharePointApi.doJsonRequest(SharePointApi.java:95) ~[fess-ds-sharepoint-13.15.1.jar:?]
at org.codelibs.fess.ds.sharepoint.client.api.doclib.getfolder.GetFolder.execute(GetFolder.java:45) ~[fess-ds-sharepoint-13.15.1.jar:?]
at org.codelibs.fess.ds.sharepoint.crawl.doclib.FolderCrawl.doCrawl(FolderCrawl.java:61) ~[fess-ds-sharepoint-13.15.1.jar:?]
at org.codelibs.fess.ds.sharepoint.SharePointCrawler.doCrawl(SharePointCrawler.java:122) [fess-ds-sharepoint-13.15.1.jar:?]
at org.codelibs.fess.ds.sharepoint.SharePointDataStore.storeData(SharePointDataStore.java:53) [fess-ds-sharepoint-13.15.1.jar:?]
at org.codelibs.fess.ds.AbstractDataStore.store(AbstractDataStore.java:121) [classes/:?]
at org.codelibs.fess.helper.DataIndexHelper$DataCrawlingThread.process(DataIndexHelper.java:216) [classes/:?]
at org.codelibs.fess.helper.DataIndexHelper$DataCrawlingThread.run(DataIndexHelper.java:202) [classes/:?]
Caused by: com.fasterxml.jackson.databind.exc.MismatchedInputException: Cannot deserialize value of type `java.util.LinkedHashMap<java.lang.Object,java.lang.Object>` from Integer value (token `JsonToken.VALUE_NUMBER_INT`)
at [Source: (String)"403 FORBIDDEN"; line: 1, column: 1]
at com.fasterxml.jackson.databind.exc.MismatchedInputException.from(MismatchedInputException.java:59) ~[jackson-databind-2.13.0.jar:2.13.0]
at com.fasterxml.jackson.databind.DeserializationContext.reportInputMismatch(DeserializationContext.java:1741) ~[jackson-databind-2.13.0.jar:2.13.0]
at com.fasterxml.jackson.databind.DeserializationContext.handleUnexpectedToken(DeserializationContext.java:1515) ~[jackson-databind-2.13.0.jar:2.13.0]
at com.fasterxml.jackson.databind.DeserializationContext.handleUnexpectedToken(DeserializationContext.java:1462) ~[jackson-databind-2.13.0.jar:2.13.0]
at com.fasterxml.jackson.databind.deser.std.MapDeserializer.deserialize(MapDeserializer.java:450) ~[jackson-databind-2.13.0.jar:2.13.0]
at com.fasterxml.jackson.databind.deser.std.MapDeserializer.deserialize(MapDeserializer.java:32) ~[jackson-databind-2.13.0.jar:2.13.0]
at com.fasterxml.jackson.databind.deser.DefaultDeserializationContext.readRootValue(DefaultDeserializationContext.java:322) ~[jackson-databind-2.13.0.jar:2.13.0]
at com.fasterxml.jackson.databind.ObjectMapper._readMapAndClose(ObjectMapper.java:4675) ~[jackson-databind-2.13.0.jar:2.13.0]
at com.fasterxml.jackson.databind.ObjectMapper.readValue(ObjectMapper.java:3630) ~[jackson-databind-2.13.0.jar:2.13.0]
at com.fasterxml.jackson.databind.ObjectMapper.readValue(ObjectMapper.java:3598) ~[jackson-databind-2.13.0.jar:2.13.0]
at org.codelibs.fess.ds.sharepoint.client.api.SharePointApi.doJsonRequest(SharePointApi.java:77) ~[fess-ds-sharepoint-13.15.1.jar:?]